last = audiobooks[$root.attr("data-book-id")]
if (last) {
initialElem = $('[data-media-id="' + last[1] + '"] .play', $root).first();
last = audiobooks[$root.attr("data-book-id")]
if (last) {
initialElem = $('[data-media-id="' + last[1] + '"] .play', $root).first();